Trial Outcomes & Findings for A Research Study to Characterize the Pharmacodynamics and Safety of Repeat Dose SP-102 (NCT NCT03613662)

NCT ID: NCT03613662

Last Updated: 2022-01-13

Results Overview

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in plasma cortisol levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

19 participants

Primary outcome timeframe

12 Weeks

Results posted on

2022-01-13

Participant Flow

Participant milestones

Participant milestones
Measure
SP-102
SP-102 SP-102: Injection
Overall Study
STARTED
19
Overall Study
COMPLETED
19
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Research Study to Characterize the Pharmacodynamics and Safety of Repeat Dose SP-102

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Age, Continuous
54.8 years
STANDARD_DEVIATION 14.42 • n=93 Participants
Sex: Female, Male
Female
12 Participants
n=93 Participants
Sex: Female, Male
Male
7 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
16 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=93 Participants
Race (NIH/OMB)
Asian
0 Participants
n=93 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=93 Participants
Race (NIH/OMB)
White
19 Participants
n=93 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=93 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
Height
166.51 cm
STANDARD_DEVIATION 12.294 • n=93 Participants
Weight
84.03 kg
STANDARD_DEVIATION 16.412 • n=93 Participants
BMI
30.51 kg/m^2
STANDARD_DEVIATION 6.127 • n=93 Participants

PRIMARY outcome

Timeframe: 12 Weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102. Data was not recorded for all subjects at each time point.

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in plasma cortisol levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 1 (predose)
36.62 nmol/L
Standard Deviation 31.81
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 2
0.64 nmol/L
Standard Deviation 0.27
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 3
6.26 nmol/L
Standard Deviation 9.00
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 4
29.77 nmol/L
Standard Deviation 2.60
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 5
39.91 nmol/L
Standard Deviation 40.53
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 8
39.71 nmol/L
Standard Deviation 28.97
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 15
44.28 nmol/L
Standard Deviation 33.55
Change in Plasma Cortisol Concentrations From Baseline
T1: Day 28
25.08 nmol/L
Standard Deviation 21.34
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 1 (predose)
38.81 nmol/L
Standard Deviation 41.10
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 2
0.64 nmol/L
Standard Deviation 0.23
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 3
3.68 nmol/L
Standard Deviation 3.85
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 4
50.71 nmol/L
Standard Deviation 56.21
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 5
38.35 nmol/L
Standard Deviation 35.00
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 8
41.73 nmol/L
Standard Deviation 38.95
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 15
73.31 nmol/L
Standard Deviation 97.64
Change in Plasma Cortisol Concentrations From Baseline
T2: Day 28
28.18 nmol/L
Standard Deviation 20.34

PRIMARY outcome

Timeframe: 12 Weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102. Data was not recorded for all subjects at each time point.

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in blood glucose levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Change in Blood Glucose Levels From Baseline
T1: Day 1 (predose)
4.993 nmol/L
Standard Deviation 0.5216
Change in Blood Glucose Levels From Baseline
T1: Day 2
6.155 nmol/L
Standard Deviation 0.9009
Change in Blood Glucose Levels From Baseline
T1: Day 3
4.528 nmol/L
Standard Deviation 0.4451
Change in Blood Glucose Levels From Baseline
T1: Day 4
4.676 nmol/L
Standard Deviation 0.5509
Change in Blood Glucose Levels From Baseline
T1: Day 5
4.958 nmol/L
Standard Deviation 0.4362
Change in Blood Glucose Levels From Baseline
T1: Day 8
5.059 nmol/L
Standard Deviation 0.6597
Change in Blood Glucose Levels From Baseline
T1: Day 15
5.254 nmol/L
Standard Deviation 0.8143
Change in Blood Glucose Levels From Baseline
T1: Day 28
4.963 nmol/L
Standard Deviation 0.7116
Change in Blood Glucose Levels From Baseline
T2: Day 1 (predose)
4.867 nmol/L
Standard Deviation 0.5655
Change in Blood Glucose Levels From Baseline
T2: Day 2
5.865 nmol/L
Standard Deviation 0.8673
Change in Blood Glucose Levels From Baseline
T2: Day 3
4.581 nmol/L
Standard Deviation 0.4986
Change in Blood Glucose Levels From Baseline
T2: Day 4
4.850 nmol/L
Standard Deviation 0.8078
Change in Blood Glucose Levels From Baseline
T2: Day 5
4.959 nmol/L
Standard Deviation 0.5791
Change in Blood Glucose Levels From Baseline
T2: Day 8
4.821 nmol/L
Standard Deviation 0.4463
Change in Blood Glucose Levels From Baseline
T2: Day 15
5.237 nmol/L
Standard Deviation 0.8394
Change in Blood Glucose Levels From Baseline
T2: Day 28
4.945 nmol/L
Standard Deviation 0.5959

PRIMARY outcome

Timeframe: 12 Weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102. Data was not recorded for all subjects at each time point.

Dexamethasone-induced hypothalamic-pituitary-adrenal (HPA) suppression is evaluated by monitoring SP-102 induced changes in WBC levels from Baseline. The T1 (index) and T2 (repeat) injections of SP-102 are separated by 4-8 weeks

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 1 (predose)
6.65 cell count × 10^9/L
Standard Deviation 2.051
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 2
13.43 cell count × 10^9/L
Standard Deviation 3.726
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 3
9.33 cell count × 10^9/L
Standard Deviation 2.336
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 4
7.38 cell count × 10^9/L
Standard Deviation 1.863
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 5
6.81 cell count × 10^9/L
Standard Deviation 1.771
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 8
6.91 cell count × 10^9/L
Standard Deviation 2.212
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 15
7.26 cell count × 10^9/L
Standard Deviation 1.873
Change in White Blood Cell (WBC) Levels From Baseline
T1: Day 28
6.15 cell count × 10^9/L
Standard Deviation 1.339
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 1 (predose)
6.77 cell count × 10^9/L
Standard Deviation 1.865
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 2
13.43 cell count × 10^9/L
Standard Deviation 4.517
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 3
9.21 cell count × 10^9/L
Standard Deviation 3.199
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 4
7.88 cell count × 10^9/L
Standard Deviation 2.302
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 5
7.28 cell count × 10^9/L
Standard Deviation 2.087
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 8
7.31 cell count × 10^9/L
Standard Deviation 2.803
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 15
8.05 cell count × 10^9/L
Standard Deviation 3.592
Change in White Blood Cell (WBC) Levels From Baseline
T2: Day 28
6.07 cell count × 10^9/L
Standard Deviation 1.541

SECONDARY outcome

Timeframe: 12 weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102. Data was not recorded for all subjects at each time point.

The NPRS is an 11-point scale (0- to 10-point scale where 0 is no pain and 10 is worst pain imaginable) that allows subjects to rate the severity of their pain intensity at various points in time (Turk et al., 2003). Subjects used the NPRS to record their current pain, average pain over 24 hours, and worst pain over 24 hours for both affected leg(s) and back pain. NPRS average leg pain scores over 24 hours are presented.

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Baseline (pre-dose)
5.4 score on a scale
Standard Deviation 1.30
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 1
5.3 score on a scale
Standard Deviation 1.29
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 2
3.2 score on a scale
Standard Deviation 1.84
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 3
2.2 score on a scale
Standard Deviation 1.61
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 4
2.5 score on a scale
Standard Deviation 2.14
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 5
2.3 score on a scale
Standard Deviation 2.21
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 8
2.5 score on a scale
Standard Deviation 2.37
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 15
3.2 score on a scale
Standard Deviation 2.48
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T1: Day 28
3.4 score on a scale
Standard Deviation 1.80
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Baseline (pre-dose)
5.4 score on a scale
Standard Deviation 1.18
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 1
5.2 score on a scale
Standard Deviation 1.32
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 2
3.5 score on a scale
Standard Deviation 2.36
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 3
1.9 score on a scale
Standard Deviation 1.28
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 4
2.1 score on a scale
Standard Deviation 1.58
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 5
1.9 score on a scale
Standard Deviation 1.53
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 8
2.2 score on a scale
Standard Deviation 2.21
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 15
2.4 score on a scale
Standard Deviation 2.21
Change in Numeric Pain Rating Scale (NPRS) Scores for Leg Pain From Baseline
T2: Day 28
2.9 score on a scale
Standard Deviation 2.46

SECONDARY outcome

Timeframe: 12 weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102. Data was not recorded for all subjects at each time point.

The NPRS is an 11-point scale (0- to 10-point scale where 0 is no pain and 10 is worst pain imaginable) that allows subjects to rate the severity of their pain intensity at various points in time (Turk et al., 2003). Subjects used the NPRS to record their current pain, average pain over 24 hours, and worst pain over 24 hours for both affected leg(s) and back pain. NPRS average back pain scores over 24 hours are presented.

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Baseline (pre-dose)
5.2 score on a scale
Standard Deviation 1.46
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 1
5.2 score on a scale
Standard Deviation 1.50
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 2
3.5 score on a scale
Standard Deviation 2.14
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 3
2.3 score on a scale
Standard Deviation 1.45
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 4
2.7 score on a scale
Standard Deviation 2.11
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 5
2.6 score on a scale
Standard Deviation 2.39
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 8
2.8 score on a scale
Standard Deviation 2.48
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 15
3.2 score on a scale
Standard Deviation 2.46
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T1: Day 28
3.9 score on a scale
Standard Deviation 1.90
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Baseline (pre-dose)
5.4 score on a scale
Standard Deviation 1.35
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 1
5.3 score on a scale
Standard Deviation 1.35
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 2
3.5 score on a scale
Standard Deviation 2.33
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 3
2.1 score on a scale
Standard Deviation 1.55
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 4
2.8 score on a scale
Standard Deviation 1.81
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 5
2.3 score on a scale
Standard Deviation 1.35
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 8
2.4 score on a scale
Standard Deviation 2.03
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 15
2.9 score on a scale
Standard Deviation 1.96
Change in Numeric Pain Rating Scale (NPRS) Scores for Back Pain From Baseline
T2: Day 28
3.2 score on a scale
Standard Deviation 2.27

SECONDARY outcome

Timeframe: 12 weeks

Population: 19 subjects were enrolled and received an index (T1) injection of SP-102. 15 subjects received a (T2) injection of SP-102.

Incidence of treatment-emergent AEs (TEAEs) related to study drug.

Outcome measures

Outcome measures
Measure
SP-102
n=19 Participants
SP-102 SP-102: Injection
Incidence of Treatment-Emergent Adverse Events (TEAEs)
Treatment 1
20 events
Incidence of Treatment-Emergent Adverse Events (TEAEs)
Treatment 2
10 events

Adverse Events

SP-102

Serious events: 0 serious events
Other events: 13 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
SP-102
n=19 participants at risk
SP-102 SP-102: Injection
Gastrointestinal disorders
Abdominal discomfort
5.3%
1/19 • 12 weeks
Gastrointestinal disorders
Abdominal pain
5.3%
1/19 • 12 weeks
Gastrointestinal disorders
Abdominal pain upper
5.3%
1/19 • 12 weeks
Gastrointestinal disorders
Dyspepsia
10.5%
2/19 • 12 weeks
Gastrointestinal disorders
Food poisoning
5.3%
1/19 • 12 weeks
Gastrointestinal disorders
Gastrooesophageal refluxdisease
5.3%
1/19 • 12 weeks
General disorders
Pain
5.3%
1/19 • 12 weeks
Infections and infestations
Bronchitis
5.3%
1/19 • 12 weeks
Infections and infestations
Nasopharyngitis
10.5%
2/19 • 12 weeks
Infections and infestations
Respiratory tract infection
5.3%
1/19 • 12 weeks
Infections and infestations
Tooth abscess
10.5%
2/19 • 12 weeks
Investigations
Blood glucose increased
5.3%
1/19 • 12 weeks
Investigations
White blood cell count increased
5.3%
1/19 • 12 weeks
Musculoskeletal and connective tissue disorders
Back pain
5.3%
1/19 • 12 weeks
Musculoskeletal and connective tissue disorders
Neck pain
5.3%
1/19 • 12 weeks
Nervous system disorders
Headache
36.8%
7/19 • 12 weeks
Nervous system disorders
Migraine
5.3%
1/19 • 12 weeks
Skin and subcutaneous tissue disorders
Night sweats
5.3%
1/19 • 12 weeks

Additional Information

Associate Director Clinical Operations

Scilex Pharmaceuticals, Inc.

Phone: 6503866709

Results disclosure agreements

  • Principal investigator is a sponsor employee The Sponsor has the right to first publication of the results of the study. Following the first publication, PIs may publish study data or results; however, the proposed publication must be submitted to the Sponsor for review and approval in writing at least sixty (60) days prior to the date of the proposed publication. Sponsor may remove from the proposed publication any information that is considered confidential and/or proprietary other than Study Data.
  • Publication restrictions are in place

Restriction type: OTHER